Two Norwegian journalists were arrested in the US while taking pictures of the property where Chelsea Clinton is expected to get married.

State troopers charged Thomas Bjorn Nilsson and Kjerste Sortland with trespass after they were stopped on Wednesday at the Astor Estate in Rhinebeck, a picturesque town in upstate New York.

It's the venue where the daughter of former president Bill Clinton and secretary of state Hillary Rodham Clinton is reported to be marrying investment banker Marc Mezvinsky on 31 July.

Helje Solberg, managing editor at the Oslo-based newspaper Verdens Gang, said police went overboard when Nilsson and Sortland tried to take pictures of the estate's gate. She said they were not on the property, adding: "The Clinton wedding has a public interest."